କାଷ୍ଟ୍ ଓ କ୍ରୂ
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Lindsay LohanCady Heron - Rachel McAdamsRegina George
- Tina FeyMs. Norbury
- Lacey ChabertGretchen Wieners
- Tim MeadowsMr. Duvall
- Amy PoehlerMrs. George
- Ana GasteyerBetsy Heron
- Lizzy CaplanJanis Ian
- Daniel FranzeseDamian
- Neil FlynnChip Heron
- Jonathan BennettAaron Samuels
- Amanda SeyfriedKaren Smith
- Wai ChoyTim Pak
- Olympia LukisJessica Lopez
- Jonathan MalenKristen's Boyfriend
- David SazantMarymount Captain
- Elana ShillingSpelling Girl
- Mark Watersନିର୍ଦ୍ଦେଶକ
- Lorne Michaelsପ୍ରଯୋଜକ
- Jill Sobel Messickପ୍ରଯୋଜକ
- Tina Feyଲେଖକ